Centrifugal separator.



'1n-B. WESTON M. H. BAKKER GBNTRIEUGALSBPARATOR. APPLICATION FILED MAYQ, ,19.1111

. Patented Mai. 23, 1915 :Devin B. wEsToN, or sHARON, AND MELviLLE 11 cHUsE'rTs, l

ouFioE.

BARKER, o 'F BosToN, Messa- CENTRIFUGAL snramron.

To all 'w-zom it may concern.'

lBe it known that we, Dvm B". "WESTONA and MELVILLE I-I. BARKER, citizens ofthe' United States, and residents,l respectively, of Sharon, Massachusetts, andBoston, Massachusetts, have invented4 certain new and useful Improvements -in Centrifugal Separators, of whichvthefollowing Vis a sr'ne'cification.- v

` This invention relates to centrifugalseparators usedfor the separation of solids from liquids and vis employed in the manufacture of starch as well as for otherpurposes.

The object of the invention is to produce a simpleand eliicient mechanism bywhich the separation-of the'solid contents from the liquid introduced into the machine'may'be expeditiously and continuously accomplished and to affordl a construction whereby the extraction may takepla'ce under a pressure correspondingto a much higher tempera-- ture than a boiling point.

It isl also the purpose to afford 'a construction of receptacle which shall afford com-4 plete access to the interior land shall admit of quick and convenient replacement. of parts.

In the accompanying drawings we have' illustrated the preferred formof Aembodyf ing the principles of this invention.

Figure 1 is a side elevation of a complete machine the surrounding casing being shown in central section. Fig. 2 is a detail central section showing the construction ofthe re-v ceptacle and of the valve mechanism. Fig.

is a horizontalr section or plan view of the receptacle on a sectionalplane immediately above the valve ports.

In the practice of our invention according tothe form illustrated in the drawings, we' employ a stationary casing preferably consisting of two concentric chambers a and av one within the other separate oii'takes a2, a3'. Inside the casing is 4rotatably supported'the centrifugal refrom the 'liquid introduced therein is efi fected. This rotary receptacle comprises an upper member b and a lower member c both" of which-are frusto conical in shape andare joined together at their larger ends so as to form a receptacle in the shape of a double cone outwardly flared from the ends toward the middle and detachably joined togetherby means of bolts b ata point where ings or ports b".

are made detachable in thisjinstance -by valve is provided with These valves are opened lner ends of the levers d2,

adjustment o conical defiector e5, and having ceptacle by which-'the separation of the solid.A

'so located that -vided with. perforations SpeicatiOn 0f Letfqrs'atnt- '9 Patented Mar. 23, 1915. applicati@ ined may 9,1911. serialNo. 625,971; V

their peripheral flanges 112,0 meet. One

member, preferably the upper member has a depending ange b2 permit the formation therein of' a series of radial outlets or holes in which are preferably secured' a series of detachable bush- These bushings forming peripheral screw threads which arescrew'ed into the radial theA flange b2.

thereon, holes in At their innerfends these lbushings are nished'to form valve seats for the radial inwardly opening valves d.

`In order to control thevalves at will, each a link d" connected to one end of an angle lever or arm d2 which isfulerumed in a' supporting bracket b, 'b secured to the inside of the receptacle.

by 'raising the inand are closed by depressing the inner ends of said'flevers.

This to and fro movement of the valve levers Y is accomplished by means of a flange collar or spool 'd5 secured to a vertical slide rod d, v

which passes up through .the hollow shaft and -is at its upper end secured to an actuating lever Z7 by which the movement and f all the radial valves is controlled.

. The receptacle is provided with a'central There maybe also used a series of hori- 4Zontal deflecting plates e6, e7, the lower defleeting plate e may be4 imperforated and its periphery yis separated by a narrow annular space from'the opposing portion of the receptacle. The upper deiector e7 extends substantially nearer to the adjacent'wall ofI the receptacle to make a relativelyl narrow passage, and -isl projac'ent to the central tube, 4so that the tend# or ports or openings e'3 adof suiicient depth to which is supported ,ao secured to the' inside central tube e is prowhich serves to spread t below.

` ency will be for the solid or heavier constituents to pass beyond the outside .of this deflector, while the lighter liquid constitu? ents pass through the openings nearer the s aft is also hollow and forms the outlet "for the receptacle leading toy the oli'take pipef3. -l

rlhe upper section Y) of the receptacle is shown provided with a removable cap be whose lower portion -is detachably bolted to the main body portion b, and whose upper portion is bolted to the upper shaft All joints throughout are made steam tight so as to permit the use of high-pressure superheated steam, since many substances ywid'mitrof more easy separation of their* solidjconstituents when heated above the boiling point. By using the removable cap 736, it is possible to operate the machine ywith the top open, so as toallow the lighter liquid content to flow through the opening and discharge into the outer casing, while 'ille solidjcontent is discharged into the innercaslng through the valve ports. The

use ofthe radial vanes or partitions. serve itqimpart a rotary motion to theliquid con more quicklyv after theirintroduction into the'receptac`le,' but it will be noticed that these partitions terminate a short. dis

`tance from the peripheral wall .carrying the valves, so that there may be communi cat1on fromone compartment to the other, s uclrcommunlcatlon 1s also afforded above andbelow the inner ends of said partitions. 'The'liquid to be separated is introduced through the pipe f3 under pressure and flows upwardfthrough the hollow shaft until it impinges upon the deflector. @5,1 by

which it is deflected toward the outsideof thefreceptacle. As the fluid passes., upward theheavierconstituentsunder the -action of centrifugalfforce tend to flow outwardly as far'as possible, while the lighter liquidpor- "tion assumes the interior\'positio. As the receptacle becomes nearly full. the liquid portionflowsout through the upper end and dischargesthrough the outletpipe yf, when i the top of thereceptacle is closed r.orinto the `,olitercasing a when the top cap i's removed. Jflffter the operation of' separation -hasfeiecs tively commenced, the lever ,ai7 may th enbe raised to' allow\the discharge of the more [solid constituents, which have assumed the mation-adjacent to, said. valves- 111 .ferdr to neutralize the act1on of centrlfugalforce on the valves we prefer to provide each valve lever with la counter-balancing weight d1", so as'to make it more easy Ato operate the 'valve mechanism. By forming the valve ports entirely in the upper member, by which the valve mechanism is also secured, it becomes possible to lift off the upper member of vthe receptacle to get access to the interior, without disturbing the valves. Moreover, as the,. port s are easily unscrewed or detached from this upper receptacle, it becomes possible to easily remove them for the purpose of keep'f ing them clean, of grinding thevalveseat or of making any repairs or renewalsI What we claimris: f 1. A. centrifugal separator embracing its construction a pressure-tight separator chamber whose conical walls are `flaredfutwardlyto the plane of its greatest diameter,

said chamber being provided with a series of valved discharge portslocated in its periphery, upper and lower hollow shaft sections secured4 to to allow the inflow and outflow of liquid during the rotation of the receptacle about its vertical axis, substantially as described. 2. A centrifugal separator embracing in its construction upper and lower'conical members outwardly flared from their op; posite ends to their point of union,' a .series of jvalved ports located wholly withinone member, andvalve actuating mechanism supported by the same memberin which the ports are located, hollow shaft sections secured to the small end of each member to formrespectively inlet and outlet passages for the flo-w of liquid, substantially as described.

3. In a centrifugal separator the combi nation ofthe chamber comprising upper and lower members of frusto conical shape detachably secured together at their larger ends and being pressure tight, a hollow rotary supporting shaft secured to the small end of one of said members, a similar hol# low shaft secured to the'opp'osite end of the other section, a series, of eripheral ports, inwardly opening valves, lxvers for actuating said 'valves said leversjbeing weighted tol counterbalance the tendency lof 'said valves toy remain close d,substantially as de- L Ina ycentrifugal Vseparator the "combinationof aclosed receptacle comprising oppositely ilared conical members securedtoget herinthe plane of-their greatest diameters one of said members being provided 1with a seriesofpe'ripheral openings, a series of removable bushings secured in l'said openings to form ports, valves mounted in said ports toopeninwardly, valve actl'lating mechanism. Supported ,births membelponf taining the ports, how lshaasecrionsra:

the `opposite endsv ofthe chamberto rotatably. support the same and loc ' cured 'to the upperA and lower members at l their small diameters torotatably support 4-said receptacle and permit the ini-low and its construction the rotary receptacle flaredv voutflow of liquid, substantially as described.

. A centrifugal separator comprising a receptacle .whcse upper and lower walls are inclined,l respectively upward andv down-v ward toward the-aXis of the receptacle'said receptacle being provided'with aseries ofv peripheral Valved ports, upperl and lower hollow shaftections detachably secured to the opposite ends of` said receptacle to rotatably support said'receptacle andto aiord conduits' for the liniow4 and outow of liquids, a valve controlling rod passing through one of said hollow shaft members,

and means external ,to said hollow shaft for actuating said 'valve controlling rod', substantially as described. v v

6. A centrifugal. separator embracing in outwardly from its .opposite ends to an ina termediate pointand provided with valved ports atits greatestdiameterfa hollow inlet* shaft secured to-,one end of `said receptacle, a del'lector .arranged'within saidreceptacle a opposite to saidshaft tofdeflect the inflow-V ing liquid outwardly, la coperating hollow .shaft section secured totheopposite end of y ,offtake lfor the liquid,P substantially as' described."

said receptacle' to provide an pressure tight chamber whose-f up er andl rom the plane ofitsgreatest diameter, a series of peripheral valves for controllinglllv the discharge' of 'solid' matter, upper and lower hollow shaft Asections'secured to thel lower', walls are' inclined ir'iwardlyy intermediate l opposite ends of'said receptacle to rotatably support .thesame, valve controlling mechawith lateralvalved solid matter, a hollow rotary shaft bywhich nism disposedy inside of said receptacle, and

a, valve controlling `rod extending through one shaftsection to permit -thecontrol of the valves`hile maintaining pressure 'in the receptacle, substantially as described.

8. Af-ce'ntrifugal machine embracing in itsconstruction a rotary receptacle provided lports for the `escape of said receptacle is supported and rotated said hollow shaft forming an inlet' forthe introductionv into the receptacle of ,thev liquid to be'se'parated, said `receptacle being pro.

vided at the end` opposite said shaft with an outlet'port for the escape of the liquid contents,l substantially as-described. f

912A centrifugal separator embracing in ,its construction, a `pressure-tight separator chamber 'comprisingA two opposed frusto conical members united attheir larger-,di-

ameters, eachj being' provided at its. apex lend/with a port to accommodate the `ilow of liquid through the chamber, a` series of sub# I 'lstantially radial partitionsI terminating j some distance short of the periphery 'of the chamber at'its largest diameter to permit communication between the radial compartments of the chamber'around theoutside of 

